Gauge



T. c. ERSKINE Jan. 20, 1931.

GAUGE Filed May 2. 1928 Fig. 4 is a view in perspective illustrating a modified form of gauge;

The loose nailing machine comprises a head in which is mounted a cam shaft'and cams for operating an awl bar 12 carrying an awl 14 and a driver bar carrying a driver 16. As will be apparent from Fig. 2, the awl is operated first to perforate the sole of the shoe and then move transversely, feeding the work and carrying the awl hole into alignment with and beneath the driver 16. The driver is then operated to insert a nail in the awl hole and the operation continued in a'step-bystep manner about the marginof the heel-seat and sometimes aboutthe entire J sole. The machine includes a throat plate 20 which bears upon the surface of the work-' and a transversely movable slide 18 which carries the gauge mechanism andwhich' may* be shifted bysegment and gear mechanism when it is desired to varythe' distance betweenthe margin of the solejand theline of nails as, for example, in p'assingfrom the shank of ashoe to the heel-seat portion thereof.

T e ge e ha ism d r fi y e a te on a gauge slide 22,1held in place by a pair of vertically disposedheaded studs 24 and having rack teeth cut in its upper surface which mesh-with a pinion 28 upon a tra'ns verse shaft which may be connected'to a lever notshown, or any. other convenient ineans by which the pinion may be turned; to H shift the gauge slide forwardly and rear; wardly to'make an initial adjustment EQQE the gauge mechanism, It will be understood that this adjustment is made preliminarily to operating upon shoes of a given style and 2 then not ordinarily disturbed, whereas" the adjustment of the slide 18 above mentioned is commonly made during the progress of the work about each individual shoe. v The gauge slide 22 has a pair of downwardly extending ears between which extend a journalpin 2 6, uponwhich is pivotally.

mounted a three-arm lever. .The forwardly extending arm3O of the lever carries a gauge roll plate 36 having a downwardly extending stem, which is clamped in: the lever by a clamping bolt 31, and .a pair 'of freely rotating gauge rolls 38 mounted upon its upper surface upon spaced parallel axes. These rolls are the, gauge members which serve primarily to guide the shoe with respect to the awl and driver and it will be apparent that if the gauge is displaced rearwardly, as seen in Fig. 2, the-line of'nails will bespaced further from'the margin of the sole, and vice versa. 1

The lever is yieldingly maintained in place by a vertically disposed pin .40, which passes. freely through an aperture in the second arm 32 of the lever. The pin 40 has a head which is received in a recess in the upper surface of the gauge slide and provided at its lower end with an adjusting nut 42. Between the 8 naled for freeirotationon (the pin e54'isa' conical head, comprising a body-portion 48 and a cushion ring 50. The guard member coinprisesa large disk of leatheror other tough but flexible and yieldable material; This 'is clamped upon the conical head by a washer- 52 and is, consequently, free to travel about'the axis fof'thejoiirnal pin 54. The

journal pin is recessed, as shown in, Fig. 3, andprovided with a spring 56 which acts to hold the material of the guard disk 46 off the ,endkof the journal pin so as notto retard the free rotation of the guard disk.

. 1 The guard disk 46 is of such size and its axis so located with respect to the gauge rolls 38that the margin of the disk is bent upwardly over-the acting peripheral faces of the gauge rolls and coyeringthe upper edges,

thereof; If grain leather is used as the ma.- terial of the guard disk, the flesh side is preferably disposed toward the gaugerolls andthe grain sidetoward the work .The margin of the disk 46,1theref0re, bridges the; space between the gauge rolls 38 and serves asan endless traveling cushion be tween the gauge rolls and the work. The disk-itself is turned by the pressure of the movingshoe upon it and it, in turn, rotates the gauge rolls. The guard, therefore, not only eliminates relative movement between the work andthe gauge but serves as a cushion to receive the impression ofany slight irregularity, such as the back seam,

whichot-herwise mightmomentarily displace the work as it passed over the .-face of a rigid gauge roll.

. Thegauge rolls shown in Fig. 2 are mounted on two axes spaced a fixed distance apart.

In handling shoes of various sizes, however,

it is sometimes convenient to change the spacing of the gauge rolls. In Fig. 4 Ihave, accordingly, shown a construction in which provision is made for relative adjustment of two gauge rolls. Referring toFig. 4, each gauge roll 138 is mounted upon the forward end of a separate lever 136, pivotally mountedupon a pin 137 set in one arm 180 ofa lever intended to be mounted on the gauge slide as before. Each lever 136 is forked at its .rear end and provided with a swivel block 140. The blocks 140 are threaded to receive a right and left-hand screw r ing beyond the larger edge'of the roll.

tion of the arm 130 and havingat its outer I 1,789,565" I I 142, which retained in place by a central collarl i l received in a depression in a porend a knurled head 146." This may be turned to swing the rear ends of the levers 136 toward or from each other and so adjust the spacing of the gauge rolls 138. Theguard disk 46 isiembodiedin this construction'in the manner already explained.

It will be apparent that in the normal;

operation of the machine 'the guard disk 46 is rotated so that its margin has the same linear travel as the work. A. fresh portion of its material is, therefore, constantly brought into operativeposition, with the re sult that wear is reduced to a minimum and is equally distributed when it does occur,'so

7 that uniform action and long life of the gauge is'insured. Moreover, the disk may be readily replaced should that become necessary. i I

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a machine for operating on shoes, a

rotatable gauge rollfor guiding a. shoe with respect to an operating tool,'and an endless guard member movable with the shoe and I between the shoe and said gauge roll.

2. In a machine for operating on shoes, a

V freely rotatable tapered gauge roll for guiding a shoe with respect toa'noperating tool,

and an endless guard member of flexible material movable continuously between the shoe and said gauge roll with its margin extend- 3. In a machine for operating'on shoes, a rigid gauge roll freely rotatable and located for guiding a shoe with respect to an operating tool, and a guard member of yield able material movably supported in position 7 between said roll andthe shoe, serving to cushion small irregularities in the contour of the shoe, being moved by engagement with the shoe to present continuallya fresh portion and acting itself to rotate the gauge roll.

4. In a machine for operating on shoes, a rotatable gauge roll for guiding a shoe with respect to an operating tool, and a disk of flexible material mounted for movement about an axis so disposed that the margin of the disk is bent over the actingface of the roll and travels continuously between the roll and the shoe.

5. In a machine for operating on shoes, a gauge member for guiding a shoe with respect to an operating tool, a 'yieldingly movable supporting member for said gauge mem-o her, and a flexible guard member carried also by said movable supporting member and arranged to travel continuously betweenthe shoe and said gauge member.

6. In a machlne for operating on shoes, a gauge roll mounted to' rotate about an g .ojperatirrgtoolr toblf a 1 abeut an ax s 'ated bey the gau 5-57.; a 'maohi-ne 'for" operating on shoes,

fro the operating tool; gauge member jetsam-a ree Deena carried thereby" and" acting to guide. 'sl'ioe respect to the ofieratifng"tool, and an endless guard member of ,flexible' and yieldmovable therewith travenngzeentinu;

ou'sly' between theshoel and said gauge mamurement by the gauge, member.

*ber thereby protectingtliei shoe" from disfig e 8. In a, machine for, operating on'shoes, a

transversely movable slide, athree-arm lever I mounted therein foryielding movement, a.

gauge roll mounted on one arm of said lever, spring position controlling means associated with a second arm thereof, and a flexible guard disk pivotally mounted upon the third Q. In a machine for operating on shoes, a iv pair of gauge rolls freelyrotatable on spaced. axes located in. predetermined relation to i an operating tool, and a guard disk of flexible material mounted for movement about an ax s so located as to malntainaportion of the margin thereof continuously upon the acting faces of the gauge rolls.

10. In a machine for operating on shoes, a pair of gauge members located in predetermined relation to anop'erating tool, and. a

guard disk of flexible material mounted for movement about an axis so located as to maintain a portion of the margin thereof in position continuously to bridge the space between said gauge members.

r 11. In a-machine for operating on shoes,

a pair of gauge rolls freely rotatable on spaced axes and bodily adjustable for varying spacingf'and a guard member of flexible material disposed between the gauge rolls and thework and overlapping the acting faces of 'said rolls in all adjusted positions thereof.

12. In a machine for operating-on shoes, a pair of tapering gauge rolls with flat upper surfaces adapted to underlie the edge of a projecting sole and guide a shoe with respect to an operating tool, means for adjusting the V its curved contour, fastener inserting means,

a feeding tool movable in a straight line path and tending to crowd the shoe always 7 Ian yieldable material 1 arranged to travel always between the shoe. andthegauge rolls 7 against 'oneof saidrolls, and a guard. "of

' to obviatemark ingof the shoe thereby.

14. A nailing machine comprisingspaeed gauge. rolls arranged to guide a shoe an awl forperforating the sole. and feeding the shoe in a step-by-step'mannertending to crowd the shoe .always against the gauge rolls, a driver, and a guard disk arranged V with its edge traveling between the shoe and the gauge rolls to cushion the engage.

ment of the shoe therewith. e

In testimony whereof I have signed my name to this specification. 1

' THOMAS C. ERSKINE.

his 

